-adaptive-resize geometry, adaptively resize image with data dependent triangulation. -adaptive-sharpen geometry, adaptively sharpen pixels; increase effect. Due to recommendations for using adaptive-sharpen ( discourse-server =1&t=) I decided to give it a try. -adaptive-blur -adaptive-sharpen -black-threshold -clut (when mapping greyscale CLUT image to alpha channel if set by -channels) -colors for gray colorspace.

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How to “Smart Sharpen,” adaptive-sharpen not working Questions and postings pertaining to the usage of ImageMagick regardless of the interface. Usage questions are like “How do I use ImageMagick to create drop shadows?

Can someone help imagemagck with using ImageMagick to follow the Smart Sharpening workflow. Yes, I asked about adaptive-sharpen in bugs.

ImageMagick Sharpen Resized Images

I thought more people might see it here. ImageMagick examples mostly using php Imagick examples. Needs quite a bit of work still!!! Select all exec “convert image-original. I tried sharp from here: Is there shar;en on Freds site that whould do what you want?

I am not sure about your error, I tried it on my localhost on a windows machine. Select all convert N JPG -unsharp 1×2 output.


You can extract the luminosity of an image by changing the images colorspace and separating the channels. Actually just changing the images colorspace and restricting operations shafpen just one channel will also work! Especially now that the three image masked composition works with grayscale fixed IM v6.

It sjarpen turn out simpler than expected or not, and a proof of concept may be posible using -fx or pixel iterated PerlMagick, or just as described above using a masked composition.

Publish your findings here!!!

Bluring and Sharpening — IM v6 Examples

imagwmagick I’ve started by creating imgemagick softened edge mask then using it to composite an Unsharp’d version of the photo over the original. I haven’t tried to use just the luminosity channel yet. I tried 12×4, 10×2 and 10×5. After each one I visually checked them and then ran compare on them I am currently running 6. I have not tried the newest version yet–I am trying to stay with RPMs for ease of upgrading.


I posted this in Bugs, but no replies, and no mention of it being fixed in the change logs. We’ll get to it and report back here when we have a solution.


I imagemafick not checked on 6. If you want to post me your test image somewhere and link it here, I will run it on my system and post the results. I had been using USM: It rerally should have no effect. Just use 0 normally. Sigma is the sharphing control, and number should be in the range from 0.

EG edges, not wrinkles. But I do now know what are good numbers. I think a percentage should be used to remove the effect of your comnpilation ‘quality’. I experimented with all the one-place decimal numbers 0x1 and below.

I didn’t understand your comment about quality.

Command-line Tools: Convert @ ImageMagick

That is a JPEG encoding option. Also radius does have an effect, although not the effect that I expected. I should take a look at the source code. Curious how they compare to adaptive-sharpen!